Heeling machine



B. F. MAYO.

HEELING MACHINE.

. APPLICATION FILED JAN. 21, I918. 1,415,941 Patented May 16, 1922.

3 SHEET$-$HEET I.

B. F. MAYO.

HEELING MACHINE.

APPLICATION FILED JAN. 21. ms.

1,415,941; Patented May 16,1922.

3 SHEETS-SHEET 2.

B. F. MAYO.

HEELING MACHINE.

APPLiCATION FILED JANA ZM I918- 1,415,941 Patented May 16, 1922.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

BENJAMIN E. MAYO, or SALEM, MASSACHUSETTS, assmnon To UNITED SHOE MACHINERY CORPORATION, or PATERSON, NEW JERSEY, A conroanrron on N W JERSEY.

HEELING MAoHIivE.

Specification of Letters Patent. Patented lflay 16 192% Application filed January 21, 1918. Serial No. 212,978.

To all whom it may concern."

Be it known that I, BENJAMIN F. Marc, a citizen of the United States, residing at Salem, in the county of Essex and State of Massachusetts, have invented certain Improvementsin Heeling Machines, of which the following description, in connection with the accompanying drawings, is a specitication, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to heeling machines and particularly to those in which' the work, as a shoe mounted upon a last and the heel to be secured to the shoe, is first engaged by opposite relatively movable members through what is termed a primary or positioning movement, in which preliminary contact of the members and the work is offected, and which work is thereafter pressed firmly between the members in a secondary or clamping movement to properly position and rctainit for the principal operation of the machine, the nailing of the heel upon the shoe. An example of such a machine is found in Patent No. 1,157,688, Glidden, Oct. 26, 1915. i

It is an object of the present invention to furnish a positioning and pressure mecha nism, positive and direct in action, with relatively few parts and inwhich the elements are held firmly against slipping when they are locked during application of the secondary pressure.

With this object in View, a. feature of the inrention consists in novel. means for effecting the primary or initial positioning movement through the influence of the actuating mechanism from which other operations of the machine, a the nailing of the heel, result. As herein illustrated, this movement is obtained from the main driving shaft. and I baveshown, as a means for transmitting: the power of said shaft, a toggle which may be partly straightened to cause the primary movement and thereafter farther straightened in the application of the secondary pressure.

As another feature, to allow the positioning contact to be obtained without exerting undue force and to provide forthe desired amount of secondary pressure,this preliminary movement is produced through connections arranged in a novel manner and including a yieldable member, a positive connection being made to give the secondary movement or pressure. For this purpose, I may employ sectional connections, parts of which. are either joined through. a spring or directly to one another through a locking member without the interposition of the spring.

To vary the relative extent of the position mg and pressure movement, I have provided, as a further feature, novel means for permitting the time of action of the locking member for connecting the sections to be changed. The preferable manner of accomplishing this is by varying the position of the member with relation to the sections it connects.

In the accompanying drawings is shown one of the many forms my invention may assume,

Fig. 1 being side elevation of a heeling machine; i

Fig. 2 an enlarged side elevation of my novel mechanism, parts being broken away and in section, and

Fig. 3 is vertical section. on the line 3-3 of Fig. 2.

At 10 appears the frame of a heel-attaching' machine, having opposite work-engaging members furnished by a jack post 12 upon which the shoe to be operated upon mounted upon a last is placed, and a nail block 14 having openings in which. act drivers 16. These drivers are carried by a slide 18 arranged for vertical reciprocation in the lower portion of'the frame, this movement beingimparted by a toggle 20 which is joined by a connecting rod 22 to a crank 2 on the main driving shaft 26 journaled at the rear of the frame. Above the nail block operate the usual heel and top lift holders, together with the nail-loading mechanism. To effect the engagement and pressure of the work between them the members 12 and 1.4- are relatively movable. In the present instance, the nail block is fixed while the jack post/is mounted to be raised and lowered by a vertical. slide 30 guided in an arm 31 projecting horizontally from the upper portion of the frame. To this slide 30 is pivoted a top lever 34 fulcrumecl at 35 on the frame. Between the opposite extremity of the lever and the shaft 26 are connections by which the effect of the shaftis applied to both measure the work and press it against the block 14; for the nailing operation.

lated by a long pin 50 to the bottom of the casing. To this pin50 is also pivotally connected one element 52 of a toggle, the other toggle element 54being pivotedat 56 upon the frame and having preferably formed integrally with it two forwardly extending arms 58, 58 upon the ends of. which are mounted anti-friction rolls 60. These rolls contact with the surfaces of cams 62 fixed upon the, drivin shaft 26. \Vhen the shaft is rotated in the direction of the arrow in Fig.2 of the drawings, the action upon the arms 58 is such as to straighten the toggles, causing the upward movement of the casing 44 and the connected elements. Projecting downwardly and rearwardly from the toggle element 54 is-an arm 64 at the lower extremity of which is an anti-friction roll 66 for contact with the edge of an extension 68 from the cap of the connecting rod 22. The co-operation between the extension (38 andarm 64 causes the toggle to be broken or restored to normal from itsstraightened position, the movement in this direction being limited by contact between a shoulder 69 upon the arm64 and a cushionTO mountedvin asocket 72 and being adjustable therein by a screw 74 threaded through the rear of the socket.

The connecting rod 42 enters the top of the casing 44througl1 an axial opening in a head 7 6 threaded upon the casing. The rod preferably is. held against rotation by opposite projections 78, 78 extending through slots in the upper portion of the casing walls. and entering vertical depressions in the frame and in anannular bracket 80 surrounding the cylinder. Vithin the casing the rod 42 is provided at its lower extremity with a screw 82 of steep pitch. Surround ing this screw is a correspondingly threaded nut 84 having abouta lower portion of its periphery a locking or clutch surface slightly inclined from the cylindrical so that it is frusto-conical and being situated opposite a like surface 88 upon the interior of the casing. To determine the normal relation or extent of-separation between the locking surfaces 86. and-88, the nut 84 rests upon van adjustable support whichI have shown as consisting of. a lever 90 pivoted at 92 upon the. frame and having inside-the casing, which it enters by. a slot in its side. a

cup 94supportinga ball ,96 .upon which rests a plate 98 fastened to the bottom of the nut. The cup is threaded into the lever to adjust the vertical position of the nut with relation to an upper ball thrust bearing 100 maintained at a constant distance from the lever 90 by a yoke consisting of a rod 102 passin through the lever and through vertical' slbts in the casing wall, opposite side rods 104, 104 and pins 106, 100, said pins entering an annular groove 108 formed in the upper member ofthe thrust bearing 100. As a further means of holding the bearing 100 upon the nut and taking up any play in the parts, a spring 110 may be interposed between said bearing and the projections TS upon the rod 42. The rear extremity of the lever 90 rests upon an adjustable positioning member furnished, in the present in stance, by the head of a bolt 112 threaded into a bracket 114 and retained in the position to which it may be adjusted by a lock nut 116. As this screw 112 raised or lowered, the lever 90 moves with it, thus correspondingly altering the vertical position of the nut 84 and the distance of its inclined wall 86 from the opposite casing wall 88 to determine the time of their locking engagement. To hold the lever in contact with the screw 112, I may provide a rod 118 extending horizontally across the top of the lever above the screw and connected at its outer ends by springs 120, 120 with the machine frame. These springs, acting through the rods 104 and pins 106, also hold the nut in the normal position, this being effected without interference with its free rotation by forcing it against the ball 96.

Surrounding the connecting rod 42. between the casing head 76 and a nut and. lock nut 122 upon the threaded portion 40 of the rod, is a helical spring 124, which. when the surfaces 86 and 88 of the nut and casing are out of contact, so connects the casing and rod that movement may be yieldably communicated from one to the other.

In using the machine the operator jacks the shoe upon the post 12 and depresses the treadle 120. This, through a singlercvolution clutch 128. causes the ap nu'atns to perform a single cycle. As the driving shaft rotates, the cams 62 acting upon the portions 58 of the toggle 52*54 moves this toward its straightened position. raising the casing 44. The screw 112 having been so adjusted that there is a space between the locking surfaces 86 and 88, the upward travel of the casing will first be communicated to the rod 42 through the spring 124, the nut 84- at this time rotating upon the threaded portion 82 of the rod as the latter moves through it. This swings the top lever 84 about its fulcrum and lowers the work until the heel seat of the shoe is in contact with the heel which is held over the nail block 14. After the shoe and heel have been thus brought into i the casing, compressing the spring 124 until the surfaces 86 and 88 contact, this occurring at such a time that the further movement of the toggle to its fully straightened position will apply the desired pressure to the work. WVhen the surfaces come into engagen'ient they are frictionally locked, the steepness of the inclination insuring that there shall be no slip between the nut and easing. Thus locked to the casing, the nut serves to positively join the casing and rod,

since the latter cannot now rotate the nut. 'llherefore, as the straightening of the toggle continues, the casing and rod move together as a unit, the farther tilting of the lever 34 causing the shoe to be forced down upon the heel against the nail block under positive pressure. While the toggle is thus in its straightened position and the Work clamped, the nail drivers 16 are raised through the nail block by the crank 24: and intermediate connections to drive the nails, which have previously been positioned in the nail block by the loading mechanism. As the rotation of the crank completed, the extension 68 ofthe connecting rod 22, by contact with the toggle arm 64, breaks the toggle, which is stopped without undue jar by the cushion 70. All the elements of the machine are now restored to their normal positions.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a heeling macliine, actuating mechanism for the machine, a co-operating jackpost and nail-block relatively movable under the influence of the actuating mechamsni, and means controlled by the actuating mechanisn'i and including relatlvely movable sections and an interposed resilient member for producing initial movement of the jackpost and the work.

2. In a heeling machine, actuating mechanism for the machine, a co-o tierating jackpost and nail-block, means operated by the initial movement of the actuating n'iechanism and including relatively movable sections 2nd an interposed member, for initiating movement of the jack-post, and means whereby a farther movement of the actuating mechanism presses the work aniljacle post together through the agency of the sections independently of the interposed mem ber.

3. In a heeling machine, a main driving shaft, an actuating member movable by the shaft, relatively movable opposite work-err gaging members, and a connection between the actuating mechanism and an engaging member for effecting initial movement of said engaging member and the work, said connection having normally spaced surfaces movable into engagement to limit such initial movement.

l. In a heeling machine, a main driving shaft, an actuating member movable by the shaft, relatively movable opposite work-engaging members, a connection between the actuating mechanism and an engaging member for effecting relative initial positioning movement of the engaging members during.

a portion of the movement of the actuating member, and means adjustable along the connection for causing a work-pressing movement of the members during farther movement of the actuating mechanism.

5. The combination with nailing mechanism, of a driving shaft therefor, a cam fixed to the shaft, a work-engaging member, and means actuated by the cam and including relatively movable sections and an interposed resilient member for producing an initial positioning movement of the engag ing member with respect to the work.

6. The combination with nailing mechanism, of a driving shaft therefor, a work-engaging member, and connections between the shaft and work-engaging member including a toggle, said toggle when moved toward a straightened position imparting an initial positioning movement to the engaging member limited in extent and in preparation. for a succeeding pressure movement surrounding one of the sections.

7. The combination with nailingi1nechanism, of a driving shaft therefor, relatively movable work-engaging members, connections between the shaft and a work member including a toggle, said toggle when moved toward a straightened position producing an initial positioning movement of an engaging member and when farther straightened subjecting the work to pressure between the engaging members, and means arranged, to de termine the extent of the initial movement.

8. In a'heeling machine, a driving shaft for the machine, work-engaging members, a toggle actuated. from the shaft for producing in being straightened. a positioning movement and pressure upon the work by one of the engaging members. rotatable in cans carried by the shaft for straightening the toggle, and means operated with another engaging member for breaking the toggle.

S). The con'ibination with nailing mechanism, of a driving shaft, connections between the driving shaft and nailing mechanism, a jack, connections between the driving shaft and jack including a toggle, and. means carried by the nailing mechanism connections for breaking the toggle.

10. The combination with nailing mechanism, of a driving shaft provided with a cam and a crank, a connecting rod between the nailing mechanism and crankQa workengaging member, a toggle connected to the member and actuated by the cam, and means carried by the connecting rod for also actuating the toggle.

to the engaging member, means 11. The combination with nailing mechanlsm, o1" adriving shaft therefor, a workengaging member, connections between the for retaining the cushion in different positions. I

13. The combmation with nailing mechanism, of'a driving shaft therefor, a workengaging member, connections between the shaft and work-engaging member including a toggle, one of the members of which is provided with a plurality of arms, means for straightening the toggle to operate the wvork-engaging member co-operating with one arm, and means'for breaking the toggle co-operating with another arm.

.14. Thecombination with nailing mechanism, of a driving shaft therefor, a workengaging member, connections. between the shaft and work-engaging member including a toggle one of the members of which is provided with a plurality of arms, means for straightening thetoggle to operate the work-engaging member co -operating with one arm, means for breaking the toggle cooperating with another arm, and a cushion with which one of the arms contacts.

15. In' a heeling machine, a work-engaging member, actuating mechanism therefor, a-resilient member connecting the engaging member and actuating mechanism during a portion: of the work-engaging movement, and means including an element rotating during; such portion of the movement for positively connecting the engaging member and actuating member during another portion of the operation.

16; In a heeling machine, a work engaging member, actuating mechanism therefor, a resilient member connecting the engaging member and actuating mechanism during the initial portion of the operation, and rotatable means carried within an element of theactuating mechanism for thereafter positively connecting the engaging member and actuating mechanism.

17. In a heeling'maehine, relatively movable work-engaging members, actuating mechanism, a resilient member connecting an engaging member to the actuating mechanism to produce a preliminary movement,

and means interposed between an engaging member and the actuating mechanism, and having opposite friction surfaces for positively connecting said engaging member and the actuating mechanism to press the work between the engaging members.

18. In a heeling machine, a work-engaging member, actuating mechanism, sectional. connections between the engaging member and actuating mechanism, a yieldable member surrounding one of the sections, and means constructed and arranged to allow the work engaging effect of the actuating mechanism to be transmitted to the engaging member either d iredtly through the sections or through the surrounding yieldable member.

19. In a heeling machine, a work-engaging member, actuating mechanism, sectional connections between the engaging member and actuating mechanism, a yieldable mem her for connecting the sections to one another to move together, and means wholly contained within one of the sections for directly joining said sections i1nle] )endentl of the yieldable member for movement in the same direction.

20. In a heeling machine, a main driving shaft, a work-engaging member, sectional connections one section of which is under the influence of the driving shaft and another section being joined to the work-engaging member, a spring surrounding one of the sections and contacting with another, and means contained. within another section for uniting the sections indepcmlently of the spring.

2].. In a heeling machine, a main driving shaft, a work-engaging member, sectional connections one section of which is joined to the engaging member, a toggle connected to another section, means for 5l31.:llIl1ll0lling the toggle to operate the engaging member, a spring interposed between the sections during the initial movement of the toggle, and means for positively uniting the sections during the succeeding movement of the toggle.

22. In a heeling machine. a work-engaging member, actuating mechanism, connections between the engaging member and actuating mechanism including a rod provided with a contact surface, and a casing movable upon the rod, means situated within the casing for securing the rod to said casing, and a spring situated about the rod between the casing and the contact surface;

23. In a heeling machine, a work-engaging member, actuating mechanism, connections between the engaging member and actuating mechanism including a rod )rovided with a contact surface surrounding said rod and being variable in position thereon, and a casing movable upon the rod, means situated within the casing for securing the rod to said casing, and a spring situated about therod between the casing and the contact surface.

24. In a heeling machine, a work-engaging member, actuating mechanism including a power-shaft, a connection between the engaging member and actuating mecha nism movable to cause said engagino memher to apply pressure to the worIr, said connection including a threaded rod and a to permit the normal position of the connecting means to be varied independently of the sections.

26. In a heeling machine, a work-engag ing member, actuating mechanism, connections between the engaging member and actuating mechanism including independently movable sections, means for connecting the sections to cause them to move together, and a support upon which the connecting means is held independently of the sections, said support being movable to vary the time at which said connecting means becomes efiective.

27. In a heeling machine, a work-engaging member, actuating mechanism, connections between the engaging member and actuating mechanism including independently movable sections, means for connecting the sections to cause them to move togather, a support variable in position to determine the time of action of the connecting means, and means carried by the support to furnish opposite bearings for the connectin means.

28. n a heeling machine, a work-engaging member, actuating mechanism, connections between the engagin member and actuating mechanism inclu ing independently movable sections, meansfor connect ing the sections to cause them to move togather, a lever co-operating with the connecting means, and an adjustable support upon which the lever is iulcrumed.

29. In a heeling machine, a worl -er1gaging member, actuating mechanism, conue:;-- tions between the engaging member and actuating mechanism including independently movable sections, means for connecting the sections to cause them to move together, a lever co-operating with the connecting means, bearings for opposite sides of the connecting means, and a yoke joining the bearings and resting upon the lever.

30. In a heeling machine, relatively movable worl -engaging members, actuating mechanism, connections between an engaging member and the actuating mechanism including a locking member, and a support for the locking member variable in position. to provide for a work-positioning movement and a worlepressing movement of said engaging member.

31. In a heeling machine, a worlcengaging member, actuating mechanism, connec tions between the engaging member and actuating mechanism, including a casing, a rod extending into the casing and being threaded, a nut engaging the thread within the casing, and an adjustable support for the nut extending into the casing.

32. In a heeling machine, a work-enga ing member, actuating mechanism, connections between the engaging member and actuating mechanism including a casing, a rod extending into the casing and being threaded, a nut engaging the thread within the casing, an adjustable support for the nut extending into the casing, and bearings for opposite sides of the nut connected to the support.

33. In a heeling machine, a work-engaging member, actuating mechanism, connec tions between the engaging member and actuating mechanism including a casing, a rod extending into the casing and being threaded, a nut engaging the thread with in the casing, the nut and easing having cooperating locking surfaces, and means whereby the normal space between the look ing surfaces may be varied.

In testimony whereof I have signed my name to this specification.

BENJAMIN F. MAYO.

Certificate of Correctioil.

It is hereby certified that in Letters Patent No. 1,415,941, granted May 16, i922, upon the application of Benjamin F. Mayo of Salem, Massachusetts, 'for an improvement in Heeling Machines, errors appear in the printed specification requiring correction as follows: Page 1, line 6Q, for the Word movement reed movements, and line 85, strike out the word is page 3, line 83, claim 5, after the word member insert the words SMI'WOl/fltdiflf] one of the sections, and line 95,

strike out the words surrounding one of the sections; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office,

Signed and sealed this 17th day of October r 1)., 1922.

[SEAL] KARL FENNING,

Assistant Commissioner of Patents. 

